Gas heater



c. E. EPWORTH.

GAS HEATER. APPLICATION FILED APR. 8, I920- RENEWED APR. 11, 1922. 1,421,190. 7 Patented June 27,1922.

3 SHEETS-SHEET I.

gwve wtoz Charles .5 502002170 9513 his W01 C. E.. EPWORTH.

GAS HEATER.

APPLICATION FILED APR. 8, I920. RENEWED APR. II, 1922.

mm w, M 4 SE WM D H 5. u M k m 2 H a m c m Z 6 u v. 4* I P Z e/ m Ww w in Q i w 2 m 2 f i 1 s LI w 1 1n u I \ll M0 I8 flM H |HH WW W" 5 5 q 6 w w w a w a J 3% 4 a w I- Ii|| t1? 6 MM 4 7 I 6 2 W 6 3 a 3 a a 3 W z x w a z a Z Z 5 M 4 c. E. EPWORTH.

GAS HEATER. APPLICATION FILED APR48,1920- RENEWED APR. 11, 1922.

1,421,190. Patented June 27,1922.

3 SHEETSSHEET 3- Ckan'esEEem/Mk @3313 M5 Wm 42 ens HEATER.

rears so;

1/ '0 all whom it may concern Be it known that 1; CHARLES E. EPWORTH, a citizen of the Uni-ted States,- and residing at Brooklyn in-the county of Kings and State of New York, have invented certainnew and useful Improvements in Gas Heaters. of which thefollowing is aspecification, such as will enable those skilledin the art to which it ap'pertains to make and use the same.

This invention relates to gasheaters and particularly to heaters of this class designed to be used in a room or compartment, or in a fireplace of such room or compartment; and the object of the invention is to provide a heater of the class specified which is so designed as to overcome the faulty-constructions of heaters of this class 'n'ow upon the market and to produce aheater' which will most efficiently and economically radiate the maximum amount of heat from a burner within the heater; a further object being to provide improved means for supplying and circulating the air to the heater; a further object bein to provide an improved baffling device, the construction of which is such that the air passed through the apparatus ill be heated to the greatest extent by reason of the heat radiating qualities of said baflling device; a still further object being to provide improved means whereby the height of the flame of the separate burners or burner tips which I employ may be regulated; and with these and other objects in view the invention consists in a heater of the class and for the purpose specified which is simple in construction and operation. and efficient in use, and which is constructed and operated as hereinafter described and claimed.

The invention is fully disclosed in the following specification and accompanying drawings, in which the separate parts of my improvement are designated by suitable ref erence characters in each of the views, and in which Fig. 1 is a frontview of my improved heater with parts of the construction broken away and in section;

Fig. 2 a partial section on the line 2-2- of Fig. 1;

Fig. 3 a partial section on the line 3-3 of Fig. 1 with parts of the construction shown broken away;

Fig. 4 a partial section on the line 44 Specification of Letters Patent. Patentgd Jung 1%}22 Application filed Aprils; 1920, Serial Noz 372142; Renewed- April 11, 1922;

Serial No. 551,472

vided in the top thereof with a-lar'ge oblong aperture 13 and secured to the corner portions of the front and back and endwalls Hand 12 are foot members 14 by means "of which the heater is supported onafloor or other surface. The top face of the front and back; and-end wa-llsll and 12 are ro vided with grooves 15'adapted to receivethe front plate- 16; the back plate 17 and end plates 18 0f the heater or the lower edges thereof. The grooves 15' of the base 10 are enlarged where they join at the corner portions of said base as shown at-19 to receive the lower edges of'L-shaped-cornerposts 20, this construction being clearly illustrated in Fi 5 of the drawing;

also provide atop or cover plate 21 which is beveled upwardly-and inwardly, as shown at 22, and said cover plate is provided with a-downwardly directed flange 23 at the front, back and ends thereof, and said flanges are provided with grooves 9A in the bottom faces thereof,- and a supplemental top member '25 is adapted to be mounted in the grooves 24 of the coverplate 21, as clearly shown in Figs. 1 and-2 of the drawing. The supplemental top H1Gn1br-25 is provided'with a large oblong opei'i-ing 26, andv the bottom face of said member is pro vided 111- the front. back and end walls there'- of with grooves "27 adapted to receivethe upper edge portions of the front, back and' end plates. '16, 17 and 18 of the heater as well asthe upper edges of the corner'pjosts 20inthe'same manner as the connectionof said lates and corner posts at the top of the baselO. H

The supplemental top member 25;;or'the walls thereof, are ap a roximately arc-shaped in form and the front and end walls'ofsaid member are provided with aplurality of discharge apertures- 28 through which the air passed into the heater is adaptedto be discharged.

The front plate 16-01? the heater-is: pro

vided at the top portion thereof with a forwardly directed oblong raised portion 29 in which is formed a plurality. of cross-shaped apertures 30 and rectangular apertures 31 as illustratedin Fig. l of the drawing, and through which the heated air of the heater may pass.

The lower end portion of the base 10 is provided with an oblong rectangular opening 32 adapted to be closed by a door 33 hinged to said plate as shownat 34:, said door being provided with a plurality of vertlcally arranged elongated apertures 35, spaced longitudinally thereof, and these apertures are closed by a transparent sheet 36 of mloa or similar material, preferably colored, and

A which is placed on the inner face of the door as clearly shown in Figs. 2 and 6.

The door 33, or the backthereof, is hollow or provided with a chamber, which is adapted to be filled with pieces of broken glass 37, preferably colored glass, which are prepared in the usual manner to form a solid mass thereof, but which will give the desired effect, and this substance is held in place by keepers 38 securedto the side walls of the door 33, and one of these keepers is shown in section in Fig. 6.

The front wall 11 of the base 10 is provided centrallythereof with a forwardly directed hollow extension 39 to which is secured a valve device 40 by screws 41 passed backwardly through the back wall of the pro jection 39, as clearly shown in Fig. 3. The cover 33 is provided centrally thereof with a downwardly directed extension 42 which is adapted to normally close the extension 39 of the base 10 as shown in Fig. 2, and the lower edge of the extension 4E2 is provided with a lip 43 by means of which the cover 33 may be raised on its hinge to give access to the valve 44 of the valve device 40, or the winged head 45 of said valve in order to light the heater or to extinguish the same and also to make the desired adjustments of the valve device 40. V

The valve device 40 is provided with lat erally directed extensions 46 with one of which is connected a gas'supply pipe 47 shown in Fig. 3 of the drawing, which pipe is connected with a suitable source of supply in any desired manner and another pipe 48 is connected with the other extension &6 andis placed in communication with the burner tube 49 through a pipe and coupling construction 50 shown in Figs. 1 and 3 of the drawing. The burner tube 49 extends longitudinally and centrally of thebase portion of the heater and approximately the full length thereof, and said tube is provided in its top face with a plurality of burner tips 51 spaced longitudinally thereof.

The valve 4% of the valve device 40 is of the usual general form and construction and is provided with a stop pin52 which limits the movement of said valve when revolved in two directions. An. arc-shaped plate 53 1s adjustably mounted on the front face of the extension 39 of the base 10 and held in place by one ofthe screws 41 when adjusted to the desired position. The upper end of said plate is provided. with an outwardly directed stop 54:, and the front plate of the extension 39 is provided with a stop pin 55 in connection with Which the pin. 52 on the valve 44: is adapted to operate. t will be seen that by adjusting the plate 53 from left to right to change the position of the stop 54, the rotary movement of the valve ll may be controlled to fully or partially open the same and by this means the height of the flames 56 from the burner tips 51 may be regulated at all times, or whenever desired by controlling the gas supply to the burner tips 51 through said valve 44:.

Mounted within the base 10 is an air box 57 preferably composed of sheet metal and which is of slightly less dimensions than the base 10, as clearly illustrated in the draw ing, and'this box, or the back wall thereof, is provided with a large opening 58 through which air passes into the box 57. Mounted approximately, centrally of the box 57 is a baflle plate 59 which inclines backwardly and upwardly, and which is provided'with ap proximately triangular side walls 60, which form supplemental box or compartment 61 within the air box 57, and the top wall 62 of the box 57 is provided centrally thereof and over the supplemental box 61 with a plurality of comparatively small perforations 63, as clearly shown in Fig. 3 of the drawing, and through which air passed into the air box 57 is adapted to pass upwardly around the burner tube 4:9. It will be noted on a consideration of Fig. 4 of the drawing that the air, as it passes into the box 57 is deflected to the opposite ends of said box and passes around the wall of the supplemental box 61, and then inwardly into said supplemental box and thus out through the perforations 63 in the top wall 62, as indicated by the arrows :r in said figure.

The base 10, plates l6, l7 and 18, corner posts 20, the top or cover plate 21. and the supplemental top 25, well as the box 57 are held together and in position by a plurality of bolts 64:, which pass through lugs 65 in thecorner portions of the base 10 and into studs 66 in the corner portions of the top or cover plate 21, and these bolts also pass through lugs 67 on the corner portions of a baffling device 68. T preferably mount sleeves 69 on the bolts 64 between the studs 66 and lugs 67 to reinforce said bolts and to properly space thebafiling device 68 within the heater and similar sleeves 70 are mounted on the bolts 64. betweenthe lugs 67 and 65.

The baffling device 68 is suspended within the heater on the bolts 64 and has no direct connection with the front, back or end wall plates of the heater, and'by reason of this construction I prevent the overheating of said plates which tends to destroy the finish or appearance of the l1ea ter,-as'a whole, as is commonly eXperienCed in heaters of the class now used. The battling device (38 consists of an outer casing Tl having an inwardly directed top wail'72 provided centrally thereof with alongitudin'al opening 73, which extends approximately the full length thereof and the top wall 72 is preferably provided with heat radiating'fins 74 shown in Figs. 1 and 8 of the drawing. Mounted within the casing Tlis acentral baflie plate 7 5 which is of less transverse width than the inside dimensions of the cats ing 71 thus forming passages 76-at' the opposite sides of saidplate; The late is provided centrally thereof with a downwardly directed longitudinal rib 77 which serves to direct the heat or products of combustion to the opposite sides of said plate, and centrally of th'et'op' of said plate is a raised or heat radiating fin 78 and other laterally directed heat radiating fins 79 are formed on the top of said plate in the manner illustrated in Fig. 3 of the drawing.

The casing 'r'l'of the baffling device 68 is closed at the bottom by plate 80 having a central elongated aperture 81, which extends approximately the fulllength of said plate and through which-the products ofcom'bustion and heated air from the combustion chamber 82 of the heater pass into and through the baffling device and thus out through the aperture 28 in the supplemental top member- 25. It will be seen from the foregoing that'the bafliing device 68 is composed, in the form of-construction shown, of three separate elementsor part s,'namely, the casing 71, baffle plate 75 and base plate 80, and these parts are securedtogether and in position by bolts 83 passed tl'irough the corner portions thereof, as clearly illustrated in Figs. 2 and 3 of the drawing, and the baflie plate 75 is spaced within or between the parts 71 and 80 by top and bottom flanges S l at the ends of said plate.

In the use of my improved heater the cover is first raised to give access to the valve 44- and also to the combustion chamber 82, and said valve is opened and the discharge of gas from the burner tips 51 ignited in the usual manner, a-ndafter the flanges 56 have been adjusted to the desired heighth in the mannerhereinbefore stated, the cover 33 is closed, and it will be seen that the-air passing into the chamber 82 through the air box 57 will be broken up as it passes through the apertures 63 and the heated air will be directed toward the central portion of the baffle plate 75 passing through the aperture 81 in this operation, and said heated air will be deflected to the opposite sides of said plate and passed out through the baffling device 68 through the aperture 73 therein and thus upwardly into the top or cover plate 21 and outwardly through the aper-' tures 28 in the supplemental top member 25. It will also be understood that some of the heated air will be passed outwardly around the battling device 68, and this air, or a portion thereof, may be discharged through the apertures 3031 in the front plate 16, or the extension 29 thereof. By constructing the bafliing device in the manner described and providing the same with the heat radiating fins, I utilize every possibledegree of heat generated by the burner tube 49, or the separate flames discharged therefrom' to heat the air passed therethrough to'the great est extent.-

It will also be'apparent-that the air intake'ap'erture 58 of the air box 5-7 may be placed in communication with the open air, or through the usual fresh air inlet by'means of a suitable pipe 85 indicated in dotted lines in Fig. 4:, and in this way a room or other compartment may be properly heated without affecting in any way the air in such room or compartment, or using up the air therein. The air box 57 will also serve to partially heat the air prior to its passage through the perforations 63 to the burner tips 51 thus increasing the efficiency of the heater and preventing the chilling thereof. This result is accomplished by reason'ofthe retarding or obstruction of the passage of air into the box 57.

The extension 42 of the cover 33 serves as a protection hood or cap for the valve 44, or the head 45' thereof, and will prevent the accidental turning on or off of said valve, or the tampering with said valve by children and others, and while I have shown certain details of construction for carrying my invention into effect, it will be understood that I am not necessarily limited to these details and various changes therein and modifications thereof may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

l. A heaterof the class described comprising a base member, atop member, front, back and side wall members mounted between and interlocking with the baseand top members, bolts mounted in the corner portions of the top and basemembers for securing said parts together, a bafiling device mounted in connection with said'bolts within the heater and independent of the front, backand side walls thereof, the base member being open at the top, a burner device mounted within the bottom portion of the heater and at a predetermined distance below said baffling device, and an air box mounted within the base member and below said burner device and into and through which air is adapted to pass to said burner device.

2. A heater of the class described comprising a base member, a top member, front, back and side wall members mounted between and interlocking with the 'base and top members for securing said parts together, a baffling device mounted in connection with said bolts within the heater and independent of the front, back and side walls thereof, the base member being open at the top, a burner device mounted within the bottom portion of the heater and at a predetermined distance below said baffling device, an air box mounted within the base memher and below said burner device and into and through which air isadapted to pass to said burner device, and the top member of the heater being provided. in the front and side walls thereof with apertures through which the heated air is adapted to pass.

3. A heater of the class described comprising a base member, a top member, front, back and side wall members mounted between and interlocking with the base and top members, bolts mounted in the corner portions of the top and base members for drawing the base and top members together and for holding the wall members therebetween, a bafiiing device mounted in connection with said bolts within the heater and independent of the front, back and side walls thereof, means for supporting said battling device'in a predetermined position,

' a burner device mounted within the bottom portion of the heater, an air box mounted within the base member of the heater, the top wall of said box being provided with a plurality of apertures through which air is adapted to pass to said burner device, and means for retarding the flow of air int@ and through said air box.

4. A heater of the class described comprising a base member, a top member, front, back and side wall members mounted between and interlocking with the base and top members, bolts mounted in the corner portions of the top and base members for drawing said members together and for holding the wall members therebetween, a bafiling device mounted in connection with said bolts within the heater and independent of the front, back and side walls thereof, means for supporting said baffling device in a predetermined position, a burner device mounted within. the bottom'portion of the heater, an air box mounted within the basemember of the heater, the top wall of said box being provided with a plurality of apertures through which air is adapted to pass to said burner device, and means for retarding the flow of air into and through said air box, the front wall member of the heater being provided-with a door opening and a hinged door. for normally closing said opening;

5. A heater of the class described comprising a base member, a top. member, front,

back and side wall members mounted between and interlocking with the base and top members, bolts mounted in the corner portion of the top and base members for drawing said members together and for holding the wall members therebetween, a baffling device mounted in connection with said bolts within the heater and independent of the front, back and sidewalls there of, means for supporting said baffling device in a predetermined position, a burner device mounted within the bottom portion of the heater, an air box mounted within the base member of' the heater, the top wall of said box being provided with a plurality of apertures through which air is adapted to pass to said burner device, and means for retarding the flow of air into and through said airbox, the front wall member of the heater being provided with a door opening and a hinged door for normally closing said opening, and the front wall member being provided above the door opening with an openwork construction through which air from within the heater is adapted to pass.

6. A. heater of the class described comprising a base member, a top member, front, back and side wall members mounted between and interlocking with the base and top members, bolts mounted in the corner portions of the top and base members for drawing said members together and for holding the wall members thereloetween, a baffling device mounted in connection with said bolts within the heater and independent of the front, back and side walls thereof, means for supporting said bafiiing device in a predetermined position, a burner device mounted. within the bottom portion of the heater, an air box mounted within the base member of the heater, the top wall of said box being provided with a'plurality of apertures throughv which air is adapted to pass to said burner device, and means-for re tarding the flow of air into and through said air box, the front wall member of the heater being provided with a door opening and a hinged door for normally closing said. opening, and the front wall being provided with a plurality of apertures through which the heated air is adaptedto pass.

7 In a heater of the class described, a baffling device suspended in said heater and independent of the walls thereof, said baffling device consisting of a casing the top of which is provided with a discharge opening, a plate mounted in the bottom of the casing and provided with an intake opening, and an intermediate plate mounted within the casing and around which air passed into said casing through the intake opening in the bottom plate-may pass to the discharge opening in the top ofsaid casing.

8. In a heater of the class described, a bathing device suspended in said heater and independent of the walls thereof, said baffling device consisting of a casing the top of which is provided with a discharge opening, a plate mounted inthe bottom ofthe casing and provided with an intake opening, an intermediate plate mounted within the casing and around which ,air passed into said casing through the intake opening in the bottom plate may aass to the discharge opening in the top of said casing, and said casing and the bottom and intermediate plates thereof being provided with heat radiating fins whereby the airas it passes through the bafiiing device is heated.

9. A heater of the class described comprising a base member, supporting foot members mounted in the corner portions thereof, a top plate, a supplemental top member in connection with'the top plate and provided with a plurality of apertures, front, back and side wall members mounted between the base member and the supplemental top member and interlocked therewith, corner posts mounted between saidbase member and supplemental top member and interlocked therewith, an air box mounted with in the base member, and bolts passed through the corner portions of said air box, base member and 1nto the top plate for holding all of saidparts together.

10. A heater of the class described comprising a base member, supporting foot members mounted in the corner portions thereof, a top plate, a supplemental top member in connection with the top plate and provided with a plurality of apertures, front, back and side wall members mounted between the base member and the supplemental top member and interlocked therewith, corner posts mounted between said base member and supplemental top member and interlocked therewith, an air boxmounted within the base member, bolts passed through the corner portions of said air box, said base member and into the top plate for holding all of said parts together, a baffling device mounted on said bolts and spaced in said heater by spacing sleeves mounted on said bolts, and the outside dimensions of said bafiling device being less than the inside'dimensions of said heater to form air passages between said baffling device and the front, back and side walls of the heater.

11. A heater of the class described comprising a base member, supporting foot members mounted in the corner portions thereof, a top plate, a supplemental top mem her in connection with the top plate and provided with a pluralityofapertures, front, back andside walls mounted between the base member and the-supplemental top member and interlocked therewith, an air box mounted within the base member, bolts passed through the corner portions of said air; box, said base member. and into the top plate for holding all of said parts together, a baffling device mounted on said bolts and spaced in said heater by spacing sleeves mounted on said bolts, a burner tube mounted within-the bottom portioniof the heater centrally and longitudinally of @the baffling device and at a predetermined[distance therefrom, said burner tube being provided with a plurality of burner tipsspaced longitudinally thereof, means for supplying fuel to the burner tube,-and a controlling and regulatingvalve in said fuel supplying means.

12. A heater of the class describedco nprising a base 'member, supporting foot members mounted in the corner ;portions thereof, a top plate, a supplemental top member in connection with the top plate and provided with a pluralityo'fapertures, front, back and side walls rmoullteld betweengthe base member andrthe supplemental top member-and interlocked therewith,-,an air box mounted Within the base v'member, bolts passed through the. cornerportions ofsaid air box, said base member and intoithe top plate for holding allcfsaid parts together, a baiflling device mounted onsaidxboltsiand spaced in said heater by :spacing sleeves mounted on said bolts, a-burneritu-be mounted within the bottomportion of-the-heater centrallyand longitudinally of-the baffling device and ata predetermined distance there from, said burner tube being provided with a plurality of burner tips spaced longitudinally thereof-means for supplying w-fuelto the'burneritube, a controlling andregulating valve in said .:fuel supplying means, the front wall, member .ofthe 1 heater: being, provided with a door openingto givecac cess .to the burneritips of .thebnrner tube, and;a hinged; :doorfor normally closing saidiopenmg.

13. A heater of the class described comprising a base member, supporting foot members mounted in the corner portions thereof, a top plate, a supplemental top member in connection with the top plate and provided with a plurality of apertures, front, back and side walls mounted between the base member and the supplemental top member and interlocked therewith, an air box mounted within the base member, bolts passed through the corner portions of said air box, said base member and into the top plate for holding all of said parts together, a baffling device mounted on said bolts and spaced in said heater by spacing sleeves mounted on said bolts, a burner tube mounted within the bottom portion of the heater centrally and longitudinally of the bafiiing device and at a predetermined distance therefrom, said burner tubebeing provided with a plurality of burner tips spaced longitudinally thereof, means for supplying fuel to the burner tube, a controlling and regulating valve in said fuel supplying means, the front wall member of the heater being provided with a door opening to give access to the burner tips of the burner tube, and a hinged door for normally closing said opening, said door beingprovided with an extension adapted to normally enclose said valve device and to give access thereto when said door is open.

14. A heater of the class described comprising a base member, supporting foot members mounted in the corner portions thereof, a top plate, a supplemental top member in connection with the top plate and provided with a plurality of apertures, front, back and side walls mounted between the base member and the supplemental top member and interlocked therewith, an air box mounted within the base member, bolts passed through the corner portions of said air box, said base member and'into the top plate for holding all of said parts together, a baffling device mounted on said bolts and spaced in said heater by spacing sleeves mounted on said bolts, a burner tube mounted within the bottom portion of the heater centrally and longitudinally of the baffling device and at a predetermined distance therefrom, said burner tube being provided with a plurality of burner tips spaced longitudinally thereof, means for supplying fuel to the burner tube, a controlling and regulating valve in said fuel supplying means, the front wall member of the heater being provided with a door opening to give access to the burner tips of the burner tube, a hinged door for normally closing said opening, said door being provided with an extension adapted to normally enclose said valve device and to give access thereto when said door is open, and said door being pr0 vided with a plurality of apertures closed air box, said base member and into the top plate for holding all of said parts together, a baffling device mounted on said bolts and spaced in said heater by spacing sleeves mounted'on said bolts, a burner tube mounted within the bottom portion of the heater centrally and longitudinally of the baffling device and at a predetermined distance therefrom, said burner tube being provided with a plurality of burner tips spaced longitudinally thereof, means for supplying fuel to the burner tube, a controlling and regulating valve in said fuel supplying means, the front wall member of the heater being provided with a door opening to give access to the burner tips of the burner tube, a hinged door for normally closing said opening, said door being provided with an extension adapted to normally enclose said valve device and to give access thereto when said door is opened, said door being provided with a plurality of apertures closed by a transparent panel, a body of broken glass mounted in the door rearwardly of said transparent panel, and means for bold ing said body of broken glass in position.

In testimony that Iclaim the foregoing as my invention I have signed my name in presence of the subscribing witnesses this 6th day of April, 1920.

CHARLES E. nrwoa rn. j

Witnesses C. E. MULREANY, H. E. THOMPSON. 

